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 Catalina/Capri 25/250 Sailor's Forums
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 Gybe preventer
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C25BC
Navigator

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Canada
133 Posts

Initially Posted - 07/31/2018 :  16:19:37  Show Profile  Reply with Quote
So I'm thinking if setting up a gybe preventer my Lake is 60 kilometres long , runs north and south and the wind generally blows from a southerly direction . I was thinking of installing a padeye on the boom , probably closer to aft ,using my old jib cars forward of the mast and running the line back to the factory cleats or perhaps the self tailing winch if I'm wing on wing . Has anyone tried this ? Or another configuration ?

Angus
"Tempus"
#4748
1984 Catalina 25 SK/SR/Trad.

jerlim
Master Marine Consultant

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USA
1475 Posts

Response Posted - 07/31/2018 :  18:20:44  Show Profile  Reply with Quote
We've created a set-up with a single swivel block on a snap hook (a carabiner would work equally well) and about 30' of 1/4" line that has a snap shackle at one end. Depending on the side that the main is above, we'll clip the block to the mid-ship life-line stanchion base and the snap shackle to the boom bail that the vang connects to and run the line back to a genny cleat. The geometry isn't perfect, but it works well. I've read elsewhere here-in that the compressive force of a preventer connected to a boom aft end, could cause a boom failure. I can't really see that happening, but we've had great success w/ our arrangement.

In addition to the preventer, you may really want to consider a whisper pole and the necessary lines to keep the clew properly positioned.


Fair winds!

Jerry
Whisper
C-25, #1672,'80, SR/SK
S. Jamesport, NY

Edited by - jerlim on 07/31/2018 18:24:52
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C25BC
Navigator

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Canada
133 Posts

Response Posted - 07/31/2018 :  19:43:31  Show Profile  Reply with Quote
Yeah , that's what I'm trying to figure out as far as positioning goes . I've seen someone use there vang snapped to the bottom of a stanchion or a padeye in a similar position , then I've seen diagrams online that have it as far aft of the boom you can get . With a whisper pole wouldn't there still be a a risk of a accidental gybe ? I do have one but haven't used it yet .Thanks

Angus
"Tempus"
#4748
1984 Catalina 25 SK/SR/Trad.
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JohnP
Master Marine Consultant

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1482 Posts

Response Posted - 08/01/2018 :  05:55:34  Show Profile  Reply with Quote
I installed lines with carabiners from the mid-boom attachment for the boom vang down to stand-up blocks on cars on the genoa track and back to the cockpit. One port side, and one starboard side. The preventers are there and ready to secure in a few seconds when I'm sailing on a broad reach or a run. I have no reason to remove them. They have avoided many accidental jibes.

JohnP
1978 C25 SR/FK "Gypsy"
Mill Creek off the Magothy River, Chesapeake Bay
Port Captain, northern Chesapeake Bay
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jerlim
Master Marine Consultant

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USA
1475 Posts

Response Posted - 08/01/2018 :  09:39:21  Show Profile  Reply with Quote
The whisker pole won't prevent an accidental gybe - apologies for being unclear. The pole and lines will keep the head sail from flogging about as the wind does subtle shifts, greater wind shifts will cause the gybe. You can reduce the flogging somewhat by carefully adjusting the genny sheet and positioning the main so it spills and fills the genny, but when set well, the pole is a big help.

We don't wing and wing much, I feel the need to be constantly watching the wind vane and that constant neck craning gets tiresome after awhile...

Jerry
Whisper
C-25, #1672,'80, SR/SK
S. Jamesport, NY
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Stinkpotter
Master Marine Consultant

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Djibouti
8008 Posts

Response Posted - 08/01/2018 :  10:42:31  Show Profile  Reply with Quote
Another approach is a boom brake, which doesn't prevent a jibe altogether--it substantially slows the swing of the boom, for the safety of people and to eliminate the impact on the rig. If the jibe is caused by a momentary puff or a wave rocking the boat, the boom brake might slow the motion enough to keep it from happening. It's a "set it and forget it" thing. Here's a video showing a few. (Too bad there was no wind.)

Dave Bristle
Association "Port Captain" for Mystic, CT
PO of 1985 C-25 SR/FK #5032 Passage, ex-OUPV
Now on Eastern 27 Sarge (but still sailing when I can).

Passage, Mystic, and Sarge--click to enlarge.
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C25BC
Navigator

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Canada
133 Posts

Response Posted - 08/01/2018 :  18:13:42  Show Profile  Reply with Quote
I like the idea of a boom brake and have looked at them , but I'm trying to use what I have on hand for the summer . Those little brake gadgets are pricey plus purchasing another cleat for my jibcar track from CD .

Angus
"Tempus"
#4748
1984 Catalina 25 SK/SR/Trad.
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Stinkpotter
Master Marine Consultant

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Djibouti
8008 Posts

Response Posted - 08/01/2018 :  19:53:26  Show Profile  Reply with Quote
Iíve seen a boom brake thatís like two SS rings welded together with a little tang in the upper one, for a lot less than the well-known Wichard. It offered several levels of drag. I haven't used it. Here's one from Defender:

Dave Bristle
Association "Port Captain" for Mystic, CT
PO of 1985 C-25 SR/FK #5032 Passage, ex-OUPV
Now on Eastern 27 Sarge (but still sailing when I can).

Passage, Mystic, and Sarge--click to enlarge.

Edited by - Stinkpotter on 08/01/2018 20:10:07
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